Submerged-tank heater.



E. B. WILLS.

SUBMERGED TANK HEATER.

APPLICATION FILED MAY 19, 1908.

Patented Dec. 29, 1908.

2 SHEETSwSHEET 1.

abtmmu THE NORRIS PETERSCL, WASHINGTON, n c.

E. B. WILLS. SUBMERGED TANK HEATER. AAAAAAAAA 0N IILEDMAY 19, 1908908,182, Patented Dec.29,1,908.

EDGAR B. WILLS, OF MENDOIA, ILLINOIS.

SUBMERGED-TANK I-EEATER.

Specification of Letters Patent.

Patented Dec. 29, 1908.

Application filed May 19, 1908. Serial N0. 433,733.

of the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had vto theaccompanying drawings, and to the letters and figures of referencemarked thereon, which form a part of this specification.

This invention relates to new and useful improvements in submerged tankheating apparatus and the object in view is to produce an apparatus ofthis nature so arranged that either coal or wood may be equally wellused as fuel and having a fire box with a hinged end adapted to turndown, the apparatus being provided with a suitable slide utilized as adamper and also as a means for guiding fuel being inserted within thefire box.

The invention comprises various details of construction, combinationsand arrangements of parts which will be hereinafter fu ly described andthen specifically defined in the appended claims.

illustrate my invention in the accompanying drawings, in which:

Figure 1 is a vertical sectional view through my improved submerged tankheater. Fig. 2 is a horizontal section on line 22 of Fig. 1. Fig. 3 isan enlarged detail of the fire box. Fig. 4 is a detail view of the slideserving as a damper and guide for the fuel, and Fig. 5 is a detail viewof the cover. 4

Reference now being had to the details of the drawings by letter, Adesignates a receptacle designed to be placed within a tank A having aninlet pipe A in the top thereof, and is adapted to contain in its lowerportion a fire pan B and has afire box Cwhich is supported upon the ribsA projecting from the op osite walls of the receptacle or casing. Said're box, a detail of which is shown clearly in the drawings, has an end0' provided with wings C mounted upon the pivots C u on the side box andsaid end is designed w hen the apparatus is adjusted for use for burningwood, to be turned down so that its inner surface will be flush with theupper surface of the bottom of the box, thus forming an elongatedreceptacle or box. Projecting from the bottom of said box is a sto Cwhich limits the inner throw of the as pan positioned immediately belowthe fire box. Said fire box has a grated bottom, as shown clearly in thedrawings, and "its forward end is inclined. A flue E extends from theend of the receptacle or casing in which the fire box is mounted and ismade up preferably of sections connected together by water tight jointsand said flue may extend in any suitable direction in order to increasethe course through which the heat passes so that it may be distributedgenerally through the water to be heated. In the drawings, the flues areshown as being provided with two elbows and having a damper E positionedat any suitable location, prefera ly in the upright portion of the flue,which is positioned adjacent to the rectangular outlined opening F ofthe casing.

Mounted within the grooves G arranged in pairs in the opposite walls ofthe upright portion of the casing is a slide H having lugs H? at itslower end forming pivots u on which said slide tilts. The lower end 0said slide is positioned adjacent to one end of the fire box and slidesabove the fire box and, when the slide is tilted down at an inclinationas shown in dotted lines in Fig. 1, it serves the purpose of adeflecting means for causing the fuel which is fed in the upperrectangular outlined portion F of the casing to be fed into the firebox. When thrown to an u right position, it is adapted to cut ofl tl iedirect draft over the fire box and cause the draft to pass underneaththe fire box, thence through the flue.

A suitable cover I is placed over the to of the receptacle casing andprovided with a draft door J having a handle J, said door being held bymeans of the cleats K and arranged to slide back and forth to regulatethe amount of air being fed through the ap aratus.

t will be noted that the heater has ribs L upon the under side thereofin order to allow the latter to freely circulate underneath the same andfor convenience in raising the fire box a handle T is provided which mayengage the staples T formed u on the fire box. In order to hold theflue, t e two plates R and R are provided, each having recesses toreceive the flue, one of said plates carrying screws R which engageslots R in the late R, affording means for holding the p ates clamped inadjusted positions. In the drawings, I have shown one of said flueholding plates R fastened to the flange of a heater and adjusted forholding the flue a distance from the tank.

The operation of my invention will be readily understood when taken inconnection with the drawings forming a part of this application. Whencoal or other similar material is utilized as fuel, the end of the firebox is swung to its upright position and the slide tilted down at aninclination to guide the fuel to the box. When it is desired to utilizethe box for burning wood, the end is thrown down to a horizontalposition and fuel entered in the same manner as before.

By the provision of the adjustment of the slide, the draft may bedirected above or beneath the fire box and the latter as well as the ashpan may be readily removed and relaced at will. When the parts areassemled, the a paratus ma be placed within a tank and the flue, whic ismade up of sections, may be run in any direction at any length to carrythe heat where desired.

What I claim to be new is 1. A submerged tank heater comprising a casingdesigned for insertion within a tank, a

fiue communicating with said casing, said casing havin upright wallswith vertical rooves in t e lnner surface thereof, and orizontallydisposed ribs, a fire box supported upon said ribs, a slide, pintlesproj ecting therefrom and pivotally held in said grooves, said slideadapted to tilt at an angle provided with wings and adapted, when swungoutwardly, to provide extensions for the bottom and sides of the firebox, as shown and described.

2. A submerged tank heater comprising a casing designed for insertionwithin a tank, a flue communicating with said casing, said casing havingupright walls with vertical grooves in the inner surface thereof, andhorizontally disposed ribs, a fire box supported upon said ribs, aslide, intles pro'ecting therefrom and pivotally he (1 in sai grooves,said slide adapted to tilt at an angle to guide fuel into the box, oneend of the box being open, an end hinged thereto and provided with wingsand adapted, when swung outwardly, to provide extensions for the bottomand sides of the fire box, a lug projecting from the bottom of said boxand serving as a sto and an ash pan adapted to be inserted un erneathsaid ox and limited in its movement in one direction by said stop, asset forth.

In testimony whereof I hereunto affix my signature in the presence oftwo witnesses.

EDGAR B. WILLS.

